.bu_css{
    display: flex;
    align-items: center;
    margin-top:20px;
}
.can_css{
    display: flex;
    align-items: center;
}
.heart_css{
    position: fixed;
    top:300px;
    right:20px;
}
.xin_css{
    width:30px;
    height:30px;
    border:solid 1px #ccc;
    position: fixed;
    right:20px;
    top:12px;
    border-radius:50%;
}